Finding the Fourth Proportional to 670,745.19, 1,006,148.93 and 215,355
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Solution
The fourth proportional to 670,745.19, 1,006,148.93 and 215,355 is: 323,042.50
Step by Step Solution
- Step 1: Write the proportion equation
670,745.19 : 1,006,148.93 = 215,355 : x - Step 2: Convert to fraction form
670,745.19/1,006,148.93 = 215,355/x - Step 3: Cross multiply
670,745.19x = 1,006,148.93 × 215,355 - Step 4: Simplify right side
670,745.19x = 216,679,202,820.15 - Step 5: Solve for x
x = 216,679,202,820.15/670,745.19 - Step 6: Final answer
x = 323,042.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.